> The original poster didn't specify what OS they are running, but from
> the context I suspect it is Windows. Visual mode only works on Unix.
> Also they are likely to be handicapped by not having the essential tools
> (grep/awk/sed etc.) that Unix bods take for granted.

Most of those tools are cross-platform, and can be obtained from the GNU 
folks. That's what I did. :-) But you're right; by default, they are not 
installed on Windows. Easily corrected, tho.

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